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The USN Change Journal feature of NTFS should always be active. This feature aides GeoDrive by identifying files that have changed since the last successful checkpoint. Having USN Journal enabled could prevent a full recovery in the case of a power failure, blue screen, or other failure. This is especially important for clustered systems. The USN journal can greatly shorten a GeoDrive recovery. In the case of a recovery, the Windows outage must be short enough to be covered by the events recorded in the journal file.